54520545641 has 4 divisors (see below), whose sum is σ = 54563174400. Its totient is φ = 54477916884.

The previous prime is 54520545637. The next prime is 54520545659. The reversal of 54520545641 is 14654502545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54520545641 - 2² = 54520545637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54520545841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21312461 + ... + 21315018.

It is an arithmetic number, because the mean of its divisors is an integer number (13640793600).

Almost surely, 2^54520545641 is an apocalyptic number.

It is an amenable number.

54520545641 is a deficient number, since it is larger than the sum of its proper divisors (42628759).

54520545641 is a wasteful number, since it uses less digits than its factorization.

54520545641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42628758.

The product of its (nonzero) digits is 480000, while the sum is 41.

The spelling of 54520545641 in words is "fifty-four billion, five hundred twenty million, five hundred forty-five thousand, six hundred forty-one".